I have a Canon 400D with the standard 18-55mm lens kit. I am looking at purchasing some extra lens (a wide angle lens, a telephotos lens, maybe a replacement for the standard lens). There are so many out there, that I am not getting any closer to a purchase. My obvious choice would be to go for Canon IS USM lens (I don't think I can afford the L series lens), but cost is a factor. There are other makes such as Sigma & Tamron which may be in my price range. My main questions are:
1. Are there any prferences over make of lens, Canon, Sigma &
2. Are there any other makes that people would consider?
3. If you went for a Canon, what features would you look for, eg IS, USM?
4. If you went for a Sigma lens, what features would you look for, eg APO?
5. If you went for a Tamron lens, what features would you look for?
6. Is secondhand an option?
7. Are there any specific lens' that anyone could recomend?
Many Thanks in advance